Hi Guys, A customer brought me an '09 CRF450X motor in pieces and tasked me with rebuilding it . I've managed to identify where nearly everything goes using parts diagrams, except the two parts in the photo: The washer has an ID of approx 14.36mm and OD of 20.80mm. It was stuck to the flywheel but there's already a smaller diameter washer to go there and the parts diagram only shows one washer on the end of the crank The rubber piece was in a box full of both LH and RH cover parts. It looks like some sort of camchain damper but doesnt fit on the chain guides or anywhere obvious. I cant find it on the diagrams anywhere. It might not be part of the bike but i need to know. Unfortunately I dont have a workshop manual or torque setting chart so I'm having to use my noggin here.